Morris salzhtan



.May 26, 1931.

M. SALZMAN CURLING ROD Filed Sept. 6, 1928 IlflV-ENTOR M01110 Jalzma/n,

ATTORNFV Patented May 26, 1931 UNITED STATES MORRIS sALzMnN, or iznooxnymnnw YORK, nssrenon TO U IVERSALPERMAN --WAVE MACHINE oonronarron, on NEW YORK, N. Y., A. coaronnrion on NEW YORK CURLING non Application filed September 6, 1928. Serial No. 304,374.

The invention relates to hair curlers or curling sticks of the type used in the art of permanent hair waving in which a strand of hair is secured at one end to the rod and wrappedtightly about the rodbefore the wrapped strand is inserted in the usual elec tric heater. I More specifically defined, the invention relates to that type, of hair curler comprising an outer tube and an inner rod in which the hair is wrapped about the outer tube and is turned into tightened position by the rotation of a handle at one end of the curler which acts through the centrally positioned rod to turn the end to which the hair isat- ,tached. It is required in such constructions.

- that there be a freedom of relative movement between the outer tube and the inner rod when turning in one direction and a restraint to any such freedom of relative moveinent'to any attempt to turn in the opposite direction. Numerous schemes have been suggested usually involving the useof some form of one way ratchet connection for effecting this purpose but usually such constructions arediflicult to make, require the use of'expe'nsive machining, all of which adds materially to the cost of manufacturing such devices.

Accordingly, the primary object of the invention is to provide a simplified for mof one way clutch mechanism which will provide for the requisite resistance to rotary movement in one direction and freedom of rotary movement in the opposite direction and at the same time provide av simplified form of construction which can be manufactured cheaply. 1

Primarily, this object is attained by positioning between the outer tube and the inner rod a spiral spring with one end secured in place and the parts so proportioned'and arranged that the turns of'the spring will fit snugly in the outer tube and thus provide a smooth bearing between the clutch spring and outer tube.

Still another object of the invention is to provide a configuration of hair curler which Will be free of projections and thus permit of an easy withdrawal of the curler from the finished strand without danger of becoming entangled in the permanently waved hair strand.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth in the following particular description of one form of mechanism embodying the invention, and the invention alsocons'ists' in certain new and novel features of construction and combination of parts hereinafter set forth and claimed. I In the accompanying drawings, 7

Fig. 1 is a view in side elevation of a hair curler constituting a preferred embodiment of the invention and showing astrand of hair tied thereto at one end and loosely wound about theouter tube;

Fig. 2 is a view largely in axialsection'and with parts broken away showing in detail the novel features of the hair curler shown in Fig.1; and

Fig.8 is a transverse sectional view taken on the line 3-3 of Fig. 2 looking in the direction indicated by the arrow.

In the drawings and referring first to Fig.

'1 there'is disclosed part of a persons head A constitutes a finger piece knurled to provide a roughened surface. The head 14" includes.

a cylindrical bearing portion 16 rotatably mounted within the outer the bearing portion 16" the head lfi i s reduced to provide a sleeve or extension 17 spaced from theinnen wal liof the tube 11'. a An inner rod '18 eXtendsaxially of the tube 11 one end threaded into the end piece 13 and the e h r-e din th ad dse em i h h extensionsleevelfi Positioned in the space between the outer tube 11 and the sleeve 17 is a spiral spring 19, one end 20 of which is bent inwardly and extends through a radially disposed slot 21 formed in the sleeve 17 as shown in Fig. 3. It is understood that the upper or outer end 22 of the spring is free and that the spring is proportioned so that it will have a snug, light frictional engagement with the inner side of the outer tube.

Referring to the end piece it is provided with an annular tying groove 23 and is also provided with a slot 24 extending from the outer free end 25 axially and diametrically along the projecting portion of the end piece to the groove 23.

The device also features a substantially smooth slightly tapered outer surface extending from the groove 23 to the end 26 of the finger piece 15. This construction permits the ready withdrawal of the device as a whole from the hair strand Without possibility of projections entangling in the hair as is common with some forms of similar devices now in general use.

In operation it will be understood that the hair strand B is engaged adjacent the head A by means of a string or similar flexible fastening means G which is tied to the strand. The ends of the string are then wrapped one or more times about the groove 23 and the loose ends drawn through the slot 24. This construction is found to be effective in holding the curler in position relative to the hair strand and secured against endwise movement. The hair is then wrapped conventionally about the hair receiving surface provided by the outer tube and then by engaging the finger piece and turning the same in the direction indicated by the arrow in Fig. 2, the hair strand is wrapped tightly about the curler. When sufficiently wrapped, the free end of the hair strand is secured conventionally.

It is understood that during this winding movement the turning of the finger piece has a tendency to reduce the normal diameter of the clutch spring thus permitting the spring and with it the inner rod and its associated end pieces to turn freely in the outer tube. Subsequently any tendency of the hair strand to cause a reversal or unwinding movement ing an outer tube having an end piece rotatably mounted at one end and a turning head rotatably mounted at the other end, and means within the tube connecting the end piece and head to form a unit mounted for rotary movement relative to the tube, one way clutching means for permitting a rotation of the unit in one direction and restraining such rotation in the opposite direction, said means including a spirally wound spring with its turns having a frictional fit in the tube and having one end secured to the unit.

2. A hair curler including an outer tube, an end piece rotatably mounted in one end of the tube and projecting therefrom, the proj ecting portion of said end piece provided with a tying slot, a cylindrical finger piece rotatably mounted in the other end of the tube, projecting therefrom, and forming in effect a continuation thereof, the external surface defined by the out-er tube, the finger piece and the portion of said end piece between the slot and the outer tube being slightly tapered and forming a frusto-conical surface free of projections.

3. A hair curler comprising an outer hollow tube, an inner rod formed of a plurality of parts demountably secured together end to end, and one of said parts constituting a tying piece rotatably mounted in one end of the tube, another part constituting a finger piece rotatably mounted in the other end of the tube and provided within the tube with an extension spaced from the inner wall of the tube, said rod having a freedom of rotary movement in one dlrection relative to the tube and means for securing the rod and tube frictionally from rotating freely in the opposite direction, said means including a single spiral spring having one end secured to the finger piece extension, fitted between the extension and tube and having one of its turns bearing against the tube.

Signed at New York, in the county of New York and State of New York, this 20th day of July A. D. 1928.

MORRIS SALZMAN.

will be resisted by the clutching engagement of the sides of the spring when distended in their contact with the inner face of the outer tube.

In case there is damage to the clutch spring it is simply necessary to unscrew the end pieces, remove the damaged spring and replace a new spring after which the parts are remounted and the curler is again in condition for use.

I claim:

1. A curling rod for use in curling hair in the art of permanent hair waving, compris- 

